I just bought the game and the GM spots are already filled in. I grinded all day and my MMR seems to be up there (playing 70% of the time GM).
Is it the exact same system than it was in HotS? My friend told me he heard they made it so you get demoted more easily. Honestly I feel like a lot of players just played on the promotion day and got in, when they really shouldn't be there.
Thanks for clarifying this for me
~crbox